由awk捕获的字段上的awk

Question

我找不到解析已由awk检索的字段的正确方法。

用awk我收集，看起来像第n个元素：

bbr:(bw:492.2Mbps,mrtt:0.412,pacing_gain:1.25,cwnd_gain:2) 

我想再次解析为了这个第n个字段来收集数据：

$1 = 492.2; 
$2 = 0.41; 
$3 = 1.25; 
$4 = 2; 

如果你有任何建议，你会很高兴听到它

G.

Answer 1

在这种情况下的S特林存储到file，读取$0，清洗，split编散列a和outputed在for循环：

$ awk '{gsub(/^.*\(|\)$/,"");n=split($0,a,/[:,]/);for(i=2;i<=n;i+=2)print a[i]}' file 
492.2Mbps 
0.412 
1.25 
2 

解释：

gsub(/^.*\(|\)$/,"")  # clean outside of parentheses, including them 
n=split($0,a,/[:,]/)  # split to a 
for(i=2;i<=n;i+=2)  # further process every other element in a 
    print a[i]   # you could remove the Mbps and what not here